Guide device for slide beam of hydraulic machine

Abstract

The invention discloses a guide device for a slide beam of a hydraulic machine. An upper guide assembly is mounted on the upper end surface of the slide beam; a lower guide assembly is mounted on the lower end surface of the slide beam; the upper guide assembly comprises an L-shaped bracket, a hydraulic cylinder and a roller wheel; one free end of the L-shaped bracket is a coupling end; the roller wheel is coupled to the corner of the L-shaped bracket; a piston rod of a hydraulic cylinder is contacted with another free end of the L-shaped bracket. When the piston rod of the hydraulic cylinder extends out of the hydraulic cylinder, the L-shaped bracket deflects by taking the coupling end as a center, and the roller wheel on the L-shaped bracket is contacted with a guide column. The guide device has the advantages that the roller wheel acts on the column surface of the guide column under the action of the piston rod of the hydraulic cylinder when the slide beam moves up and down; as the roller wheel is in rolling friction with the surface of the guide column, the unbalanced load phenomenon caused when the slide beam moves up and down is avoided and the slide beam can very stably move up and down under the circumstance that the moving speed is more than 800 mm / s.

Description

technical field [0001] The invention relates to an operating mechanism of a sliding beam of a hydraulic machine, in particular to a guiding device of a sliding beam of a hydraulic machine. Background technique [0002] Hydraulic presses are widely used in defense industry, machine tool industry, metallurgical industry, automobile industry and shipbuilding industry and other industries. The up and down operation of the sliding beam of the known hydraulic machine at present depends on the gap between the sliding beam and the guide column, utilizes the self-weight of the sliding beam to go down, and utilizes the pressure of the return hydraulic cylinder to push the sliding beam back. In the above two working conditions of up and down, the running speed of the sliding beam is greater than 800mm / s. Although there is a gap between the sliding beam and the guide column, since the center of gravity of the sliding beam is not at its center point, the force acting on the guiding col...

AI Technical Summary

Problems solved by technology

Although there is a gap between the sliding beam and the guide column, since the center of gravity of the sliding beam is not at its center point, the force acting on the guide column will be uneven, so that friction will appear during the downward running of the sliding beam. Uneven phenomenon; when the sliding beam uses the return hydraulic cylinder to move upwards, there will be an eccentric load moment; the sliding beam will appear crawling (non-uniform movement), and when the situation is serious, it will be stuck and damage the components of the hydraulic machine , seriously affecting production and bringing corresponding economic losses to producers

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